Power outlet still not working

I have an 02 Envoy SLE 4x4. There are 3 12 volt power outlets in the front. The main cigarrette lighter outlet works but the other two don't. I had to replace the number "13" fuse to get the main cigar. lighter to work again but the other two are still dead. Does anyone know if there is another fuse that runs the two on the bottom? Allready tried to find it on the fuse block but none were labeled for that. Also, the two one in the very back of the vehicle still works. Thanks for the help.

The fuse is under back seat drivers side mine is a problem keeps blowing fuse